Question

Round 12.0025 to 3 significant figures. Explain your answer thoroughly.

Answer 1

3 significant figures means that there are 3 digits that are known to be accurate, and any digits beyond that are uncertain. The first 3 digits of 12.0025, 12.0, are certain, while the last digit, 2, is uncertain.

To round 12.0025 to 3 significant figures, we look at the digit to the right of the third significant figure, which is 0. This digit is less than 5, so we round down 2 to 2.

Therefore, 12.0025 rounded to 3 significant figures is 12.0.

Here is a table showing the significant figures of each digit in 12.0025:

Digit | Significant figure

------- | --------

1 | Yes

2 | Yes

0 | No

0 | No

2 | Yes

I hope this explanation is thorough. Let me know if you have any other questions.

Answer 2

12.0

Explanation:

12.0025 rounds to 12.0

Digit left of the decimal point are significant unless they are leading zeros.

Here, 1 and 2 are significant. We need one more siginificant digit, so we need one digit right of the decimal point. That digit is a zero.